There are so many variations on the margarita, but here is a quick recipe for comparison:
The 42-21 Margarita
2 oz Tequila (Blanco)
1 oz Cointreau
1 oz Lime Juice
½ tsp Fructose
Instructions: In a cocktail shaker combine all ingredients with ice and shake vigorously. Strain into a salt rimmed stemware glass. No garnish necessary.